State-to-State Reaction Dynamics in Collision of Deuterium Molecule with Excited-State Nitrogen Atom

2014 ◽  
Vol 87 (6) ◽  
pp. 670-676 ◽  
Author(s):  
Rui Lü ◽  
Tian-shu Chu ◽  
Zhi-shang Chang ◽  
Wen-qing Zhang
Keyword(s):  
Excited State ◽  
Nitrogen Atom ◽  
Reaction Dynamics ◽  
Deuterium Molecule

Synthesis and Properties of 2-(Dimesitylboryl)benzylideneamines

2009 ◽  
Vol 64 (11-12) ◽  
pp. 1381-1386 ◽  
Author(s):  
Zureima García-Hernández ◽  
François P. Gabbaï
Keyword(s):  
Excited State ◽  
Nitrogen Atom ◽  
Intramolecular Charge Transfer ◽  
Quantum Yields ◽  
Structural Studies ◽  
Green Fluorescence ◽  
Imine Nitrogen ◽  
Td Dft ◽  
Imine Nitrogen Atom ◽  
Boron Center

Lithiation of 2-(2-bromophenyl)-dioxolane (1) followed by reaction with dimesitylboron fluoride afforded 2-(2-dimesitylborylphenyl)-dioxolane (2) which was deprotected to afford 2- dimesitylboryl-benzaldehyde (3). Compound 3 reacts with aliphatic amines such as n-butylamine and ethanolamine to afford the corresponding imines 2-(dimesitylboryl)benzylidenebutylamine (4) and 2-(dimesitylboryl)benzylideneethanolamine (5), respectively. Structural studies indicate coordination of the imine-nitrogen atom to the boron center. Imines 4 and 5 emit a green fluorescence near 510 nm with quantum yields approaching 10%. TD-DFT calculations suggest that this emission arises from an intramolecular charge-transfer excited state

scholarly journals Investigating the Environment-dependent Photophysics of Chlorine Dioxide With Resonance Raman Intensities

1999 ◽  
Vol 19 (1-4) ◽  
pp. 305-309
Author(s):  
Anthony P. Esposito ◽  
Catherine E. Foster ◽  
Philip J. Reid
Keyword(s):  
Excited State ◽  
Gas Phase ◽  
Chlorine Dioxide ◽  
Resonance Raman ◽  
Structural Evolution ◽  
Reaction Dynamics ◽  
Intensity Analysis ◽  
Normal Coordinates ◽  
Raman Intensities ◽  
Asymmetric Stretch

The condensed-phase excited-state reaction dynamics of chlorine dioxide are investigated using resonance Raman intensity analysis. Absolute Raman intensities are measured on resonance with the 2B2–2A2 electronic transition and used to establish the excited-state structural evolution which occurs on the 2A2 surface following photoexcitation. Analysis of the intensities demonstrates that excited-state relaxation occurs along all three normal coordinates; however, only modest evolution is observed along the asymmetric stretch. This limited relaxation stands in contrast to the extensive motion along this coordinate in the gas phase. It is proposed that the initial excited-state structural relaxation serves to define the symmetry of the reaction coordinate and thus the mechanism of Cl production following photolysis of OClO.

Pressure effects on the excited-state reaction dynamics of cis-bis(bipyridine)dichlororhodium(III), cis-Rh(bpy)2Cl2+

1986 ◽  
Vol 25 (27) ◽  
pp. 4893-4897 ◽  
Author(s):  
S. Wieland ◽  
J. DiBenedetto ◽  
R. Van Eldik ◽  
P. C. Ford
Keyword(s):  
Excited State ◽  
Reaction Dynamics ◽  
Pressure Effects

Interaction of the C = N Bond with the Cyclopropyl Ring

1981 ◽  
Vol 36 (7) ◽  
pp. 768-773 ◽  
Author(s):  
Shatha F. Al-Siaidi ◽  
Ibrahim T. Ibrahim ◽  
Keyword(s):  
Excited State ◽  
Nitrogen Atom ◽  
Gas Phase ◽  
Bathochromic Shift ◽  
Wave Number ◽  
Phase Spectra

Abstract The conjugative interaction of the C=N bond with the cyclopropylring is studied using UV-spectrophotometric technique. The observed small bathochromic shift in the n-n* bands, relative to the spectra of similar compounds but with no cyclopropylring, is attributed to the interaction of the internal Walsh MO with the nonbonded MO of the Nitrogen atom (Zlint-n interaction) in the bisected conformation of the molecule. The observed bathochromic shifts of the 71-71* bands are explained in terms of the A-n interaction. The gas phase spectra of the azomethine derivatives show vibronic structuring of the band which when analyzed yeld wave number differences be­ tween the successive vibronic peaks, of the magnitude 720—860 cm-1. They are attributed to to the wave number differences between the successive C—N=C deformed ion levels in the excited state. I n te r a c tio n o f th e C = N B o n d w ith th e C y c lo p r o p y l R in g

scholarly journals Probing Vibrationally Mediated Ultrafast Excited-State Reaction Dynamics with Multireference (CASPT2) Trajectories

2013 ◽  
Vol 117 (44) ◽  
pp. 11271-11275 ◽  
Author(s):  
Patrick Z. El-Khoury ◽  
Saju Joseph ◽  
Igor Schapiro ◽  
Samer Gozem ◽  
Massimo Olivucci ◽  
...  
Keyword(s):  
Excited State ◽  
Reaction Dynamics

scholarly journals Excited-state reaction dynamics of bacteriorhodopsin studied by femtosecond spectroscopy

1988 ◽  
Vol 144 (2) ◽  
pp. 215-220 ◽  
Author(s):  
J. Dobler ◽  
W. Zinth ◽  
W. Kaiser ◽  
D. Oesterhelt
Keyword(s):  
Excited State ◽  
Reaction Dynamics ◽  
Femtosecond Spectroscopy

New six- and seven-membered ring pyrrole–pyridine hydrogen bond systems undergoing excited-state intramolecular proton transfer

2014 ◽  
Vol 50 (95) ◽  
pp. 15026-15029 ◽  
Author(s):  
Zhiyun Zhang ◽  
Yen-Hao Hsu ◽  
Yi-An Chen ◽  
Chi-Lin Chen ◽  
Tzu-Chieh Lin ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonding ◽  
Excited State ◽  
Proton Transfer ◽  
Reaction Dynamics ◽  
Intramolecular Proton Transfer ◽  
Membered Ring ◽  
Bonding Systems

The six- and seven-membered ring pyrrole–pyridine hydrogen bonding systems are developed, which undergo excited-state intramolecular proton transfer with distinct reaction dynamics.

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